Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare read-only, idempotent and non-destructive, so the bar is lower. The description adds real value beyond those: the authorization requirement (owner/admin), the result ordering, and the pagination mechanism using before_id from the prior result. It does not mention result caps or rate limits, but the coverage is solid.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Three sentences, front-loaded with the core verb and resource, then scope, then access precondition, then pagination. The long event enumeration is dense but each item is informative; nothing is redundant.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Covers purpose, authorization, ordering and paging for a 6-param read tool. Since there is no output schema, the description could have sketched the shape of a returned event (fields), which is the one remaining gap for an agent deciding whether to call it.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% (baseline 3), but the description adds meaning the schema cannot: that before_id should come from the last result to page through, which clarifies the intended paging workflow rather than just restating the field. Minor value-add over the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb+resource (list organization events) with ordering (newest first) and enumerates exactly what is captured (flow views, exports, shares, member changes via SCIM, role changes, two-step verification). This scope is unambiguous and cannot be confused with siblings like get_org_usage or get_org_security.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives the precondition ('Only an owner or an admin can see it') and a concrete paging instruction ('Use before_id from the last result to page'). It does not name an alternative tool or state when NOT to use it (e.g., versus get_org_usage), so it stops short of full when/when-not guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.